Multi Pro 1200/1250 Page 6 -- 37 Spray System
IMPORTANT: Make sure to remove and neutralize
chemicals from spray components before disas-
sembly. Wear protective clothing, chemical resist-
ant gloves and eye protection during repair.
Removal (Fig. 39)
1. Park machine on a level surface, stop engine, en-
gage parking brake and remove key from the ignition
switch.
2. Label all spray control assembly hoses for proper
installation after repairs are completed. Loosen hose
clamps and disconnect hoses from spray control.
3. Label all wire harness leads for assembly purposes.
Disconnect wire harness connectors from regulating
valve, flowmeter and three (3) boom valve motors.
4. Remove pressure gauge tube from coupler on pres-
suregaugeportonrightsideofboomvalvemanifoldas-
sembly (Fig. 40).
5. Supportspraycontrolassemblytopreventitfromfal-
ling.
6. Remove eight (8) flange head screws, flat washers
and flange nuts that secure spray control assembly to
valvemount.Remove spray controlassemblyfrom ma-
chine.
IMPORTANT: Before removing f lowmeter from
spray control assembly, note direction of arrow on
topofflowmeter(Fig.41).Thearrowshouldpointto-
ward boom valve manifold assembly.
7. Separate spray control assembly as required using
Figure 39 as a guide. Discard all removed gaskets.
Installation (Fig. 39)
NOTE: Coat gaskets with vegetable oil before installa-
tion to reduce the chance of damage during assembly.
1. Assemble spray control using Figure 39 as a guide.
Replace all removed gaskets. Make sure that arrow on
flowmeter body points toward boom valve manifold as-
sembly (Fig. 41).
2. Position spray control assembly to valve mounting
bar and secure with eight (8) flange head screws, flat
washers and flange nuts.
3. Using labels placed during disassembly, install
hoses to correct locations on spray control assembly.
Secure hoses with hose clamps.
4. Install pressure gauge tube to coupler on pressure
gaugeporton rightsideof boomvalve manifold assem-
bly (Fig. 40).
5. Usinglabelsplacedduringdisassembly,securewire
harness connectors to regulating valve, flowmeter and
three (3) boom valve motors.
6. Operatespraysystemandcheckforleaks.Repairall
leaks before returning the sprayer to service.
1. Boom valve manifold
2. Flowmeter
3. Regulating valve
4. Pressure gauge port
Figure 40
1
2
3
4
Figure 41
NOTE ARROW
DIRECTION
TO BOOM
VALVE
MANIFOLD
FROM
REGULATING
VALVE
Spray
System
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